Table 5. Testicular volume according to age group.

Age (y)	No. of patients	Left testicular volume (mL)	Right testicular volume (mL)	p-value (right vs. left testis volumes)
0–1	180	2.0±0.4	2.1±0.4	0.716
1–2	137	2.0±0.4	2.1±0.4	0.526
2–3	83	2.0±0.3	2.1±0.4	0.830
3–4	74	2.0±0.5	2.0±0.4	0.850
4–5	71	2.0±0.4	2.0±0.4	0.606
5–6	43	2.0±0.3	2.1±0.4	0.820
6–7	45	2.1±0.5	2.1±0.5	0.996
7–8	20	2.2±0.6	2.3±1.1	0.805
8–9	22	2.0±0.3	2.0±0.4	0.496
9–10	15	2.2±1.0	2.5±1.1	0.550
10–11	16	3.6±2.5	3.1±1.9	0.636
11–12	14	5.1±2.8	4.5±2.4	0.591
12–13	16	8.1±3.9*	9.9±7.3*	0.733
13–14	14	11.2±2.7*	11.6±3.0*	0.577

Values are presented as mean±standard deviation.

^*p<0.05 (compared with previous age group).